Kinetics of aerobically activated sludge on terylene artificial silk printing and dyeing wastewater treatment

2004 ◽  
Vol 5 (4) ◽  
pp. 441-449 ◽  
Author(s):  
Bao-hong Guan ◽  
Zhong-biao Wu ◽  
Gen-liang Xu
Keyword(s):  
Wastewater Treatment ◽  
Activated Sludge ◽  
Dyeing Wastewater ◽  
Printing And Dyeing Wastewater ◽  
Kinetics Of

Preparation of a New Adsorption Material and its Application in Wastewater Treatment

2011 ◽  
Vol 356-360 ◽  
pp. 498-501
Author(s):  
Wen Jie Jin ◽  
Fan Chao Zeng ◽  
Han Xue ◽  
Ying Wang
Keyword(s):  
Wastewater Treatment ◽  
Activated Carbon ◽  
Carbon Materials ◽  
Advanced Treatment ◽  
Coking Wastewater ◽  
Biochemical Process ◽  
Effluent Water ◽  
Dyeing Wastewater ◽  
Printing And Dyeing Wastewater ◽  
New Material

A kind of new adsorption material for wastewater treatment was made of fly ash as the main composition, with addition of sodium silicate, cement and pore forming material as the accessory materials, etc. Three kinds of practical wastewater were treated by using the new material, they were printing and dyeing wastewater, papermaking wastewater and coking wastewater, respectively. The results showed that removal COD efficiencies of the three kinds of wastewater were 57.89%, 71.43%, 80%, respectively, removal color efficiencies were 90%, 92%, 92%, respectively. The new developed material was mainly used for advanced treatment of the effluent water after biochemical process. It will be a substitute for activated carbon materials and have preferable application prospect.

Performance promotion of Ag2O photocatalyst by particle size and crystal surface regulation

2020 ◽  
Vol 44 (25) ◽  
pp. 10719-10728
Author(s):  
Jian He ◽  
Hongyan Fu ◽  
Pan Wu ◽  
Zehao Lin ◽  
Ya Zeng ◽  
...  
Keyword(s):  
Particle Size ◽  
Wastewater Treatment ◽  
Photocatalytic Performance ◽  
Crystal Surface ◽  
Crystal Plane ◽  
Dyeing Wastewater ◽  
Printing And Dyeing Wastewater ◽  
Wastewater Treatment Systems

Photocatalytic performance of Ag2O was greatly improved by adjusting the crystal plane structure and size with pyridine, which promoted the application of Ag2O to actual industrial printing and dyeing wastewater treatment systems.

Removal of methylene blue from aqueous solution using high performance calcium alginate/activated carbon membrane

2019 ◽  
Vol 32 (3) ◽  
pp. 307-321 ◽  
Author(s):  
Xiaoping Zhang ◽  
Yanhui Li ◽  
Meixiu Li ◽  
Heng Zheng ◽  
Qiuju Du ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Wastewater Treatment ◽  
Activated Carbon ◽  
Composite Membrane ◽  
Calcium Alginate ◽  
Dyeing Wastewater ◽  
Carbon Membrane ◽  
Content Type ◽  
Printing And Dyeing Wastewater ◽  
New Ideas

Purpose The purpose of this paper is to purify the wastewater in the garment industry. Design/methodology/approach The preparation of the calcium alginate (CA)/activated carbon (AC) composite membrane was achieved by vacuum freeze-drying and the cross-linking reaction between sodium alginate and CaCl2. Effective parameters in the methylene blue (MB) adsorption such as temperature, dose, contact time and pH were discussed. The adsorption properties of the composite membrane were investigated by isotherm, kinetics and thermodynamic analysis. The adsorption equilibrium data were described by the adsorption isotherm Langmuir model and the Freundlich model. The pseudo-first-order, pseudo-second-order and intra-particle diffusion equations were selected to evaluate the kinetics. The thermodynamic study described that the adsorption reaction was spontaneous and exothermic. Findings The AC/CA membrane is an efficient and powerful adsorbent to remove MB in printing and dyeing wastewater, and provides a new idea for the selection of adsorption materials for industrial printing and dyeing wastewater. Practical implications The composite membrane research on CA and AC can provide new ideas for the research of these kinds of materials. Social implications The paper contributes to its wider and convenientapplication in wastewater treatment. Originality/value Studies on the combination of CA and AC into adsorption membranes and for the removal of dyes from printing and dyeing wastewater have not been reported. A novel composite material is provided for treatment dyeing wastewater in garment production. The composite membrane research on CA and AC can provide new ideas for the research of these kinds of materials and contribute to its wider and convenient application in wastewater treatment.

Immobilized Microorganism Technology and the Application of Wastewater Treatment

2014 ◽  
Vol 955-959 ◽  
pp. 383-386 ◽  
Author(s):  
Ming Zhong Hu ◽  
Ya Nan Tang ◽  
Xiao Yu Wang
Keyword(s):  
Wastewater Treatment ◽  
Ammonia Nitrogen ◽  
Engineering Practice ◽  
Oily Wastewater ◽  
Dyeing Wastewater ◽  
Treatment Progress ◽  
Printing And Dyeing Wastewater ◽  
Heavy Metal Wastewater ◽  
Immobilization Technology ◽  
Immobilized Microorganism

The paper mainly summarizes the method of immobilized microorganism£¬selection the carrier, and application of immobilization technology and wastewater treatment progress. Ammonia-nitrogen wastewater and refractory organic wastewater, heavy metal wastewater, printing and dyeing wastewater, oily wastewater and several kinds of wastewater treatment of immobilized are introduced respectively. And points out what the problem should be solved that applied the laboratory application to the real engineering practice.

scholarly journals Application of polymeric ferric sulfate combined with cross-frequency magnetic field in the printing and dyeing wastewater treatment

2019 ◽  
Vol 80 (8) ◽  
pp. 1562-1570
Author(s):  
Shiguo Gu ◽  
Fei Lian ◽  
Kejun Yan ◽  
Wei Zhang
Keyword(s):  
Magnetic Field ◽  
Wastewater Treatment ◽  
Removal Rate ◽  
Oxygen Demand ◽  
Ferric Sulfate ◽  
Dyeing Wastewater ◽  
Printing And Dyeing Wastewater ◽  
Magnetization Intensity ◽  
Frequency Magnetic Field

Abstract Polymeric ferric sulfate (PFS) was pretreated with a self-made alternating frequency magnetic field for coagulation printing and dyeing (PD) wastewater treatment. The effects of PFS dosage, magnetization intensity, frequency, and time on the removal of chemical oxygen demand (COD), color and turbidity of PD wastewater were investigated. The results indicated that the magnetized PFS significantly improved the removal efficiency in wastewater treatment. When the initial COD, color and turbidity of printing and dyeing wastewater was 464 mg/L, 180 degrees, and 54.8 NTU respectively, the maximum removal rate of COD, color and turbidity was 87.9%, 80.1%, and 95.2% respectively, under the condition of cross frequency magnetic field magnetization PFS. Moreover, the PFS treatment combined with cross-frequency magnetic field could greatly reduce the pollution of iron ions released from iron-based coagulant during wastewater treatment. Characterization of magnetized PFS flocculant by fourier transform infrared spectroscopy, ultraviolet and visible spectrophotometry, and scanning electron microscopy suggested that magnetic crystal with larger size can be formed on the surface of PFS particles.

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